Kenmore 9661 oven not maintaining proper temperature

There are several reasons why your Kenmore oven model 790.7343312 may be randomly turning off. Here are some possible causes:

1. Power supply issues: Check if the oven is properly plugged in and if there are any issues with the power outlet or circuit breaker. Loose connections or faulty wiring can also cause power supply issues.
2. Temperature sensor problems: The temperature sensor is responsible for regulating the oven's temperature. If it's malfunctioning, it can cause the oven to turn off randomly. You can check the sensor with a multimeter or call a professional to diagnose and fix the problem.
3. Faulty control board: The control board controls the oven's various functions, and a malfunctioning one can cause the oven to turn off unexpectedly. Again, you can use a multimeter to check the control board's voltage output or seek professional help.
4. Overheating: Overheating can cause the oven to shut down as a safety measure. Check if the oven's ventilation system is functioning correctly, and remove any obstructions that may be blocking the airflow.
5. Malfunctioning oven door switch: If the oven door switch is malfunctioning, it can cause the oven to shut down randomly. Check if the switch is working correctly, and replace it if necessary.

An F3 error code on a Kenmore oven model No. 30168 indicates a problem with the temperature sensor. ... While cooking, the EOC then turns the burner inside theoven on or off to maintain the cooking temperature you've set

https://homeguides.sfgate.com/troubleshoot-f3-code-kenmore-oven-model-30168-100665.html

When my oven would not maintain the proper temperature, the thermostat was replaced.

check the door gasket is in good condition.if the door is closing fully properly.check the ground level.

Hello,

That pretty much sounds like a weak igniter thats causing your troubles, while the igniter first comes on to preheat the oven its seems to be ok,yet once it has been on for a while the igniter is getting weak and not allowing the gas to flow properly once its hot. By replacing the igniter the oven will maintain tempature.


GENE

The problem is usually the igniter not reaching the correct amp draw .When the igniter does not reach the correct amp draw it may allow the gas valve to partially open or not open at all. The igniters are inexpensive and easy to replace. This video will walk you thru the correct procedure for testing an oven igniter. It may be a different model but the testing will be the same.You can also enter your model # for diagrams and illustrations of your specific model. Not all models are available. All parts come with installation instructions.

sounds as if your bake igniotr has gone , or is going bad, if you remove the lower tra in oven cavity it will expose the "glow coil ignitor" after removing the power source you can unscrew and remove the ignitor form the burner bar and bring to local repair company for replacement ignitor, 50-90 bucks depending on which part it is, essy enought repair

How do you know the thermo sensor is working correctly when it gets hot?. No I think the thermal sensor is defective, it is cheap to buy.

This is a normal function of your gas range. I own a similar model and it operates the same way. The gas is not required to be on continuously to maintain the oven temperature and will relight periodically when the internal temperature drops below the prescribed set level.

When an oven doesn't maintain the set temperature, first make sure no one is allowing the heat to escape by opening its door. If not, the oven control either needs to be re-calibrated or replaced. To have the control replaced, call an appliance service person.